Either 77-81 F body calipers or the 77-up b body calipers. Both are the same. The earlier calipers (69-76?) had different thread size for the hoses. Make sure you get the b body master cylinder if you have a vacuum set up.
I used one for an 86 Caprice wagon. You just have to swap the plastic reservior for one from a G body master.
Other than that, it sounds like you are set.